Assuming That Air Is a Solution Containing Four Molecules of N₂

question 25

Multiple Choice

Assuming that air is a solution containing four molecules of N₂ for every one molecule O₂,what is the concentration of O₂ in this solution,expressed as % (m/m) ? [Formula weights: N₂,28.02 amu; O₂,32.00 amu]

• A)22% (m/m)
• B)47% (m/m)
• C)53% (m/m)
• D)78% (m/m)
• E)114% (m/m)

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Definitions:

Trust

Confidence or belief in the reliability, truth, ability, or strength of someone or something.

Predictability

The extent to which future events or behaviors are considered foreseeable based on current knowledge or patterns.

Team Cohesiveness

The degree to which team members are attracted to each other and are motivated to stay in the team, fostering unity and collaboration.

Faultlines

Represent hypothetical dividing lines that split a group into subgroups based on one or more attributes, such as demographics or values, which might affect group harmony and cooperation.